JWT Decoder
Decode and inspect JSON Web Tokens (JWT). View header, payload, and signature. Check expiration and token validity.
How to Use
- • Paste your JWT token into the input field
- • Click "Decode JWT" to decode the token
- • Review the header, payload, and signature
- • Check expiration status if available
JSON Web Tokens (JWT) are a compact, URL-safe means of representing claims to be transferred between two parties. They are commonly used for authentication and authorization in web applications.
This tool allows you to decode and inspect JWT tokens without verifying their signatures. It's useful for debugging, understanding token structure, and checking token expiration.
All processing happens entirely in your browser, ensuring your tokens remain private and secure.
- • Debugging: Inspect JWT tokens during development
- • Token Analysis: Understand token structure and claims
- • Expiration Check: Verify if tokens are still valid
- • Learning: Understand how JWT tokens work
- • API Development: Debug authentication issues